When is a car considered Stage 3 modified, and when is it Stage 1 or Stage 2 ready?

Stage 3 / Modified Vehicles

A vehicle is considered Stage 3 or modified when it has undergone significant upgrades that drastically increase power output beyond stock levels. This includes:

  • Upgraded or completely different turbochargers.
  • Engine swaps or heavily modified internal components.
  • Standalone or aftermarket ECUs.
  • Custom fueling systems, larger injectors, or extensive modifications requiring bespoke tuning.
  • A kit car

Stage 1 & Stage 2 Vehicles

A Stage 1 or Stage 2 vehicle is typically stock or lightly modified, retaining most factory components while allowing for enhanced performance. These vehicles may include:

  • A stock engine with bolt-on modifications (such as an intercooler upgrade).
  • Factory turbo, factory injectors, and the original ECU.
  • Performance enhancements that do not require custom fabrication or standalone management.

If you're unsure whether your vehicle is Stage 3 modified or Stage 1/2 ready, feel free to contact us for an assessment.

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